M76 or M-76 may refer to: M-76 (Michigan highway), a former state highway in Michigan Smith & Wesson M76, an American variant of the Swiss Carl Gustav M/45 submachine gun Valmet M76, a Finnish gas operated assault rifle Zastava M76, a semi-automatic Yugoslav sniper rifle Messier 76, a planetary nebula in the constellation Perseus M76 Otter, an amphibious cargo carrier Tikka M55 or originally Tikka M76, a Finnish rifle Marszałkowska 76 Office Center (also known as M76), an office building in Warsaw